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Improvement in oxidative stress-induced low mobility of mouse sperm by H2 treatment

Research Project

Project/Area Number 17K11261
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Obstetrics and gynecology
Research InstitutionTokyo Metropolitan Geriatric Hospital and Institute of Gerontology

Principal Investigator

Noda Yoshihiro  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 技術員 (40728078)

Co-Investigator(Kenkyū-buntansha) 大澤 郁朗  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究副部長 (30343586)
Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords水素 / 不妊 / 精子 / 酸化ストレス / 精子運動性 / ミトコンドリア / 生殖医療 / マウス / 精子運動機能 / 活性酸素 / 男性不妊 / 分子状水素 / ヒドロキシラジカル / 活性酸素種 / 体外受精 / 受精能
Outline of Final Research Achievements

This study investigated the application of hydrogen in reproductive medicine as a part of innovative research in the field of molecular hydrogen medicine. We established an experimental system using oxidative stress-impaired mouse sperm, where oxidative stress leads to a decline in sperm function, and examined the inhibitory effects of molecular hydrogen (H2) on sperm motility, fertilization rate through in vitro fertilization, and the developmental rate through embryo transfer. The results demonstrated that H2 improved the mitochondrial ATP-producing capacity and forward motility of oxidative stress-impaired mouse spermatozoa. These findings hold the potential to pave the way for a new treatment for male infertility and contribute to addressing societal challenges like delayed childbirth.

Academic Significance and Societal Importance of the Research Achievements

本研究は、水素の生殖医療への応用を探る革新的な研究の一環である。その学術的な意義として、マウス実験において、酸化ストレスによる精子の機能低下を再現する酸化ストレス障害モデルを確立した。これにより、マウス精子への酸化ストレス負荷はミトコンドリア機能に影響し、機能低下を引き起こすことが示唆され、分子状水素(H2)は酸化ストレスを受けた精子のミトコンドリアにおけるATP産生能と前進性運動能を改善し、受精率、個体への発生率についても改善することが示唆された。これらの知見は男性不妊治療の新たなアプローチにつながる可能性があり、高齢出産などの社会的な問題の解決に貢献する知見を提供することが期待される。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020 2019 2018 2017

All Presentation (8 results) (of which Int'l Joint Research: 7 results)

  • [Presentation] Molecular Hydrogen Improves Oxidative Stress-induced Damage to Mouse Sperm Mitochondrial Function2022

    • Author(s)
      Yoshihiro Noda, Taeko Nemoto, Tamao Endo, Ikuroh Ohsawa
    • Organizer
      73rd American Association for Laboratory Animal Science National Meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Molecular Hydrogen Protects Mouse Sperm Mitochondria from Oxidative Stress and Improves Sperm Motility2022

    • Author(s)
      Yoshihiro Noda, Taeko Nemoto, Tamao Endo, Ikuroh Ohsawa
    • Organizer
      15th FELASA congress 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Molecular hydrogen protects mouse sperm mitochondria from oxidative stress and improves sperm motility.2021

    • Author(s)
      Yoshihiro Noda, Taeko Nemoto, Tamao Endo, and Ikuroh Ohsawa
    • Organizer
      72nd AALAS National Meeting Virtual Meeting 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Protective effect of molecular hydrogen on oxidative stress-induced impairment in mouse sperm motility2020

    • Author(s)
      Yoshihiro Noda, Taeko Nemoto, Tamao Endo, and Ikuroh Ohsawa
    • Organizer
      71st AALAS National Meeting Virtual Meeting 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Protective effect of molecular hydrogen on oxidative stress-induced impairment in mouse sperm motility2019

    • Author(s)
      Yoshihiro Noda, Taeko Nemoto, Tamao Endo, and Ikuroh Ohsawa
    • Organizer
      70th American Association for Laboratory Animal Science National Meeting 2019 Denver
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 分子状水素は活性酸素障害によるマウス精子の機能低下を抑制する2018

    • Author(s)
      野田義博,根本 妙子, 遠藤 玉夫, 大澤 郁朗
    • Organizer
      第8回日本分子状水素医学生物学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Protective effect of molecular hydrogen on oxidative stress-induced impairment in mouse sperm motility2018

    • Author(s)
      Yoshihiro Noda, Taeko Nemoto, Tamao Endo, and Ikuroh Ohsawa
    • Organizer
      69th American Association for Laboratory Animal Science National Meeting 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Molecular hydrogen improves the oxidative stress-induced low motility of mouse sperm2017

    • Author(s)
      Yoshihiro Noda, Taeko Nemoto, Kumiko Nakata, Tamao Endo, Naoki Yamashita, and Ikuroh Ohsawa
    • Organizer
      American Association for Laboratory Animal Science (AALAS)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2024-01-30  

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